Created attachment 415520 [details]
Updated patch removing isValidIfname entirely

After more discussion on the mailing list, consensus appears to be jelling that the appropriate course of action is to remove interface name validity checking from the parse process entirely. See for instance the post by Chris Lalancette at http://permalink.gmane.org/gmane.comp.emulators.libvirt/25191

Created attachment 415533 [details]
Updated patch removing isValidIfname entirely

Updated version based on on-list feedback -- removes unnecessary header changes.

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.

Merged upstream

commit 8583b947b15775ebb3dba8790dfa4487448c3d9b
Author: Chris Lalancette <clalance>
Date:   Thu May 20 13:20:24 2010 -0400

    Remove isValidIfname.
    
    We shouldn't be checking validity in domain_conf, since
    it can be used by multiple different hosts and hypervisors.
    Remove the check completely.
    
    Signed-off-by: Chris Lalancette <clalance>

libvirt-0_8_1-11_el6 has been built in RHEL-6-candidate with the fix.

Dave

[root@dhcp-66-65-163 SOURCES]# rpm -q libvirt
libvirt-0.8.1-13.el6.x86_64


1. [root@dhcp-66-65-163 SOURCES]# tunctl -t tap.test

2. insert following xml info domain toy'xml

    <interface type="ethernet">
      <script path="/bin/true"/>
      <target dev="tap.test"/>
      <model type="virtio"/>
    </interface>

3. destroy toy

4. start toy

5. virsh dumpxml toy

<domain type='kvm'>
  <name>toy</name>
  <uuid>78be5f39-fcd3-ba4f-e244-e2be4210b2f8</uuid>
  <memory>1048576</memory>
  <currentMemory>1048576</currentMemory>
  <vcpu>1</vcpu>
  <os>
    <type arch='x86_64' machine='rhel6.0.0'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/libexec/qemu-kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw'/>
      <source file='/var/lib/libvirt/migrate/bill2.img'/>
      <target dev='hda' bus='ide'/>
      <address type='drive' controller='0' bus='0' unit='0'/>
    </disk>
    <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='fdc' index='0'/>
    <interface type='network'>
      <mac address='52:54:00:f0:eb:5f'/>
      <source network='default'/>
      <target dev='vnet0'/>
      <filterref filter='disallow-dhcp'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </interface>
    <interface type='ethernet'>
      <mac address='52:54:00:a3:ab:05'/>
      <script path='/bin/true'/>
      <target dev='tap.test'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target port='0'/>
    </console>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/>
    <sound model='ac97'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </sound>
    <sound model='es1370'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </sound>
    <video>
      <model type='cirrus' vram='9216' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
  </devices>
</domain>

the "target" node still stand there.

Verified

- Osier

Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.